Do I need to prime my existing floor tiles?

[rodilep545]

Hello
I currently have porcelain tiles on the floor, and I want to put new porcelain tiles ON TOP of them (they'll be 90x90cm).
Do I have to prime the existing tiles? Or will cleaning them be enough?

Thank you

 

[CJ]

What size tile are you putting up??

 

[rodilep545]

90x90cm. I'm talking on floor tiles, sorry if I wasn't clear!

 

[rodilep545]

Anyone?

 

[One day]

7am New Years day and you're expecting a reply?

 

[CJ]

Personally, I’d take up old tiles, self level floor, and then lay new.

 

[rodilep545]

Thanks, but I was asking about putting a primer on my existing tiles

 

[Rae]

Of course prime the floor and backbutter new tiles